The report has suggested that United boss Manager Louis van Gaal will reportedly to be in the market for a highly-rated winger, could now struggle to secure his signature now as the Bundesliga champions Bayern Munich enter the race.

However, the Senegalese midfielder, whose contract expires in 2018 – would reportedly make a move to Old Trafford unless a £40m offer is lodged.

Mane has scored 17 goals in all competitions for the Saints since joining the club from Red Bull Salzburg in September 2014.